Flynet adsl2/2+ really bad bad bad

Hy,
I have a Roper wireless router, the Flynet adsl 2/2+ 125Mbps,
I've also 2 PCI board Roper 125Mbps, I'm not happy of the link,
here's the test I arranged :

my laptop is connected to the ethernet on the wireless router, at about
1 meter I've a PC with installed
the PCI board 125Mbps, antennas are equally oriented, the result is
that a file of 130Mbyte requires 75 seconds to be
transferred from my laptop to the other PC. The PCI 125Mbps is setted
at 54Mbps with 4x enabled, the channel selected
is 4 ( ... same results with channel 11), power emitted is the maximum
.... but there is not written anywhere how much.
What I can do to enhance the link ??
Roper is a site of thiefs ??

Thanks

Antonio D'Ottavio
www.etantonio.it